Toyota Corolla (E120): How to proceed with troubleshooting

1 Vehicle brought in

2 Customer problem analysis check and symptom check

2 Customer problem analysis check and symptom check

3 Problem symptoms table

3 Problem symptoms table

  1. Without applicable symptoms, proceed to ”a”
  2.  with applicable symptoms, proceed to ”b”

4 Perform troubleshooting in the following method, depending on

4 Perform troubleshooting in the following method, depending on malfunction symptom

  1. Terminals of ecu
  2.  inspection
  3.  on–vehicle inspection

5 Adjustment, repair or replacement

End

End

Customer problem analysis check

Location

Location

Terminals of ecu

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    Circuit description
    The intake air temperature (iat) sensor, mounted on the mass air flow (maf) sensor, monitors the intake air temperature. The iat sensor has a thermistor that varies its resistance depending on the temperature of the intake air. When the air temperature is low, the resistance in the thermisto ...

    Stopping the engine
    1 Stop the vehicle. 2 Continuously variable transmission: Shift the shift lever to P. Manual transmission: Shift the shift lever to N. 3 Set the parking brake. 4 Press the engine switch. 5 Vehicles without a multi-information display: Release the brake pedal (continuously variable transmission ...

    Using the interior lights
    Interior lights list 1 Front interior light/personal lights 2 Rear interior light 3 Engine switch light (vehicles with a smart key system) Front interior light/personal lights ■ Front interior light ► Type A ► Type B 1 Off 2 Door position 3 On ■ Personal li ...